Web Forms :: Validator Control For More Than One Text Box?
May 14, 2010
I have more than two text boxes in my web form.Now I want to validate either of the text boxes value is empty then only user should get error message i.e enter either text values.
For ex: There are two text boxes Phone no and Name. If user clicks on submit button without entering in either of text boxes then only user will get error message i.e enter either phone no. or your name .I can use the javacript in order to solve this case but I want to know is there any control in asp.net to solve this purpose?
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Similar Messages:
Dec 13, 2010
I have a validator on a textbox that validates against a list to ensure that the user doesn't input the same name. When testing it, if I type in the same name including the same case structure, it returns an error. If I change one letter to a different case, it doesn't return an error but rather my SQL server returns a duplicate error. How do I change the server-side validator so that it picks up duplicate names regardless of case?
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Dec 31, 2010
I using RangeValidator (0-10)gularExpressionValidator for text box ,Iam using regx for validate numeric characters
But if i enter charcters it will fire both RangeValidator and regx validator eventhoug i am enterd character,
i want to fire both validators seperatly
Here is my code
[code]...
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Mar 17, 2010
I have a table that displays data by year. The year headings and data selections are dynamically generated, so that the code does not need to be changed every year. Each cell has 2 validators on it, and the ErrorMessages for each validator needs to say the item and the year. On top of that, the validators are in FormView templates. I know how to set the ErrorMessage text in code behind, but I am wondering if there is a way to do it more efficiently. Right now for each cell I have to code:
string Year1_Text = ...code to set the year...
RequiredFieldValidator Year1_Item1 = (RequiredFieldValidator) FormView1.Findcontrol("Year1_Item1RequiredFieldValidator");
Year1_Item1.ErrorMessage = Year1_Text + " Data Item Is Required";
CompareValidator Year1_Item1 = (CompareValidator) FormView1.Findcontrol("Year1_Item1CompareValidator");
Year1_Item1.ErrorMessage = Year1_Text + " Data Item Must Be Numeric";
With 5 years and 10 data items, that will be a LOT of code. Is there an easier way?
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Aug 10, 2010
I have a form with textbox for name and two dropdownlist for month and years. Textbox has Requiredfieldvalidator and the dropdowns has got ustomvalidator.Initially when i dont enter anything in the text box and leave the dropdowns with default "MM" for month and "YYYY" for year i get error message in the validation summary at top and asterisk next to the textbox and dropdowns. Once i enter some text in the textbox and focus is away from textbox the asterisk disappears but even though i hav selected a valid month and year the asterisk next to the dropdowns is not disappearing. Same problem with the radio buttons.
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Sep 21, 2010
i have a custom validator i have written a javascript method for this validator;this validator has been pot on a textbox that has auto post back is true .... now this validation fires when the post back happens...i dont want it to fire on the post back but only on button click
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Nov 15, 2010
I have a project I'm working on, which is basically filling in a form online. The form contains multiple pages, and I have replicated this using a MultiView. On one of the pages I have a CustomValidator which validates a driving licence, based on names/previousnames and the date of birth.If the validation fails, I want to enter a link into the text, which will allow the user to click on it and correct the information that is erroneous.
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Jan 11, 2010
I need to add a Required Field Validator to a text box on my page. When I add the validator the following happens when I run the page:
When I click the submit button the page doesn't submit because the page is invalid. No error message displays despite my having set the ErronMessage. When I click inside the text box that has the Validation, then the Required error message shows. When that textbox loses focus the error message goes away. The only way I can get the page to function correctly is if I create 2 Validators for the same text box. The first validator is set to have an ErrorMessage of "" and the second one is a regular error message.
I have used these before many upon many times and never experienced this. Below you will find the Source code.
[Code]....
This code is the only way I am able to get the validation to function correctly where the ErrorMessage displays when I leave the field blank. I appreciate any help on resolving this issue. I have deleted/re-added the validation control many times. This is the only page this type of error happens on.
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Mar 17, 2011
generally we can handle validators on Button click or when the control is left empty. I am having my requirement as follows
I am having a text box and a drop down where the drop down list is binded with database values as follows
mlocal_strStoredProcName = USADAO.StoredProcNames.PayFrequency_uspPayFrequencySelect;
oEmployee.Select(out mlocal_ds, mlocal_strStoredProcName);
ddlPaymentType.DataSource = mlocal_ds;[code]....
What i need is if the text box is left empty on ddlPaymentType_SelectedIndexChanged i would like to fire the validator
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Oct 12, 2010
I have three textboxes on an asp.net webform, how/can I use a required field validator to ensure that at least one of them contains text?
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Apr 2, 2010
I am not able to find any Site which will tell how to use Dynamicvalidator control in asp.net 3.5 from scratch.
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Jan 31, 2011
I have a a web form with multiple formviews and one field is a mandatory field. Each formview has its own submit button. User cannot submit the data in any of the formviews until that one mandatory text field is entered.
But I also have another section in the webform, which has a calculation code in it. It takes in input from two text boxes, does some calculations and displays the result in another text box. Because of the validator control, I am not able to run the calculation code without the mandatory field filled in. I would like to run the calculation code irrespective of the mandatory field.
How do I do this? I need that submit button (in calculation section) to disregard the validator and display the result.
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Feb 3, 2011
I am adding validator controls to a page on runtime. When I do this it seems to work except for one thing: the page doesn't get validated (the Validate() method is not invoked) - neither on the client nor on the server. However when I can Validate() myself, the validators do their work and generate the required errors. So it looks like the simple fact of adding a validator programmatically causes the page validation to not take place. My page does have validators in the aspx file - they work fine when I don't add any programatically, but as soon as I do add one programatically, the Validate() method is not invoked.
The way I add the validators is by creating an instance, giving values to all relevant properties, and then adding to the page control collection. I tried this in the PageLoad, and prior page-cycle events. The same result occured. I also tried with or without having a ValidationGroup, and with or without having a ValidationSummary control on the page. The same result occured.
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Oct 27, 2010
I have a requirement of converting existing english form to multi lingual form.I am currently converting english form to spanish form.
Everything works except the date formats.
The range validator is not working in a spanish form but works in a english form.
I have set the maximum and minimum value in page load as below in the english form
Heres how i have set the values
[code]...
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Jan 13, 2010
I have come unstuck with a simple compare validation.
I have the following code
<asp:TextBox ID="tbxHowMany" runat="server"
style="z-index: 1; left: 310px; top: 385px; position: absolute; text-align: center;"
Width="75px"></asp:TextBox>[code]....
So when a user enters a figure higher than 200, the validation appears.However, when I change this figure to say, 30, the validation remains. I must be doing something really stupid, I just don't know what!
UPDATE: I have also just noticed that this validation occurs when a number greater than '20' is entered into the checkbox. I'm not very confused. I am assuming this is a type issue?
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Mar 11, 2010
I'm adding RequiredField validators to a group of RadioButtonList controls, and something strange is happening when the page loads. The page renders just fine with no validators tripped, but as soon as I click on one of the radio buttons, the validator for that RadioButtonList fires and shows me the error message. I initially thought that maybe the various validators were cross-linked, so I tried clicking on a radio button in every list, but they all react the same. Here's the code that generates the whole thing:
[Code]....
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Oct 6, 2010
I am having a strange issue.
I have a file upload control and a custom validator to check the file size.
When the file size is small and when I hit upload button it hits the breakpoint on the custom validator BUT strangely when the file size is big it does NOT hit the custom validator and see the following IE error.
Internet Explorer cannot display the webpage
Diagnose Connection Problems
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Apr 27, 2010
what is the reason its never get in to the customvlidator event?
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Sep 15, 2010
I am running the code below in a .net 2.0 content page.There are no containers such as wizard etc. When I click on the submission button for debugging purposes I get 'Nothing'. why I can't access the 'controlToValidate'?
Protected Sub validateCharacter(ByVal source As Object, ByVal args As System.Web.UI.WebControls.ServerValidateEventArgs)
If Page.IsPostBack Then
Dim validationControl As CustomValidator = DirectCast(source, CustomValidator)[code]....
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Mar 1, 2010
When it comes to field validation, when I use a Compare Validator to make sure a date is a date or a numeric field has a number, I must also use a Required Field Validator to make sure there is something actually enetered. In other words, the Compare Validator allows a blank value even though a blank is not a date or number or whatever.
Is using both a Required Field Validator and a Compare Validator the way to do this or is there some way to make the Compare Validator also require input of some kind?
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Apr 20, 2010
I have a custom validator which validates three text boxes. my code is,
[Code]....
I fill in all the three textboxes.it still gives me the error message to fill in all the boxes and does not submit the page even when all the three boxes are filled.
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Apr 13, 2010
I'm creating a session variable in my .vb file and I'm able to display it in my .aspx but I can't seem to use it as a control in my asp:CompareValidator. The only way I can think to reference it on the .aspx page is with <%=Session("MyVariable") %> but
such constructs are not allowed in a validator with runat="server". But it seems like the validator must have that attribute and value.
Really what I'm trying to do is validate a user-entered number in a textbox against the one populated in that same textbox from the database. If the user replaces the textbox value with a smaller one I want to show an error message and prevent submit.
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Oct 6, 2010
I have at text box with a validator control which works fine (prevents letters being entered, only numbers)
However once it displays the error message I am unable to do anything else on the page, links don't work etc. I have to close down the window and start the website agin.
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Sep 8, 2012
I got a problem when using required field validator in datalist ,We have 4 polls. In that user must answer two polls which are required.I have added all the four polls in my datalist ,it is displaying fine and while clicking submit button the required field validator is working and giving the error message. Once we answered the required polls and clicking submit button again, all other polls which are not required showing as required one.My poll answer getting submitted thats not a problem ,I want to avoid displaying the error message for non-required polls.Here is my design and code:
<div id="pollQuestion_div" Class="read-messages-poll" runat="server" >
<asp:DataList ID="PollDataList" runat="server" onitemdatabound="PollDataList_ItemDataBound">
<ItemTemplate>
<asp:HiddenField ID="PollIDReqHiddenField" Value='<%# Eval("PollID") %>' runat="server" Visible="false" />
[code]...
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Sep 18, 2013
Is it necessary to give Control to Validate control in Custom Validator?
If yes then why this will happen?
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